[severe] access outside simlinked directory

[AT-HE]

Configuration Information [Automatically generated, do not change]:
Machine: i486
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='i486' 
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i486-pc-linux-gnu' 
-DCONF_VENDOR='pc' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash' -DSHELL 
-DHAVE_CONFIG_H   -I.  -I../bash -I../bash/include -I../bash/lib   -g -O2 -Wall
uname output: Linux ogro 2.6.27-7-generic #1 SMP Tue Nov 4 19:33:20 UTC 2008 
i686 GNU/Linux
Machine Type: i486-pc-linux-gnu

Bash Version: 3.2
Patch Level: 39
Release Status: release

Description:
        if you have a simlink pointing to a directory, chdir to that symlink 
dir, and type something with '..',
        you access the parent of real directory, not previous simlinked one.

        it is not supposed to be like, may be dangerous in a shared environment.
        
        i tested only (but not limited) with cd, cat, vi, chmod and chown; all 
returning described results.

Repeat-By:
        :/my/dir1/# ls -F /other/
         dir2/
         otherfile

        :/my/dir1/# ln -s /other/dir2/
        :/my/dir1/# ls -F
         dir2@ -> /other/dir2/
         myfile

        :/my/dir1/# cd dir2
        :/my/dir1/dir2/# ls -F ..
         dir2/
         otherfile

Notes: this was copypasted and sended trought hotmail since bashbug didn't 
connect.
          i am not a developer, so if this is a dumb report and there is a 
reason why, please ignore it xD

AT-HE


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